Table II.
Effect of treatment with either 10 mm sodium butyrate or 0.2 mm procaine on pHc and the cytosolic aK and Em of expanding cells in barley root tips
Em and pHc values are means ± se, and aK values are means with confidence limits in parentheses and the number of measurements in the final parentheses.
| Treatment | Age | [K+]o | pHc | aK | Em |
|---|---|---|---|---|---|
| d | mm | mm | mV | ||
| Control | 7 | 0.5 | 7.3 ± 0.1 (9) | 74 (71, 78) (9) | −97 ± 6 (9) |
| + Butyrate | 7 | 0.5 | 6.8 ± 0.1 (12) | 77 (71, 84) (11) | −91 ± 4 (12) |
| Control | 21 | 0.002 | 7.0 ± 0.1 (11) | 44 (40, 49) (8) | −124 ± 8 (11) |
| + Procaine | 21 | 0.002 | 7.3 ± 0.1 (13) | 49 (44, 53) (10) | −108 ± 6 (13) |